Service Manual
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website http://www.lgservice.com LG Multi Type Air Conditioner SERVICE MANUAL MODEL • Indoor Unit: Room Type AMNH093D4A0(LMN090HE) AMNC093D4A0(LMN090CE) AMNH123DEA0(LMN120HE) AMNC123DEA0(LMN120CE) Art Cool Type AMNH093APM0(LMAN090HNS) AMNC093APM0(LMAN090CNS) AMNH123APM0(LMAN120HNS) AMNC123APM0(LMAN120CNS) • Outdoor Unit: A3UH363FA0(LMU360HE) A3UC363FA0(LMU360CE) LG CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.
website http://www.lgservice.com LG Multi Type Air Conditioner SERVICE MANUAL MODEL • Indoor Unit: Room Type AMNH093D4A0(LMN090HE) AMNC093D4A0(LMN090CE) AMNH123DEA0(LMN120HE) AMNC123DEA0(LMN120CE) Art Cool Type AMNH093APM0(LMAN090HNS) AMNC093APM0(LMAN090CNS) AMNH123APM0(LMAN120HNS) AMNC123APM0(LMAN120CNS) • Outdoor Unit: A3UH363FA0(LMU360HE) A3UC363FA0(LMU360CE) LG CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.
Service Manual
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Multi type Air Conditioner Service Manual TABLE OF CONTENTS Model Number Nomenclature ...3 Symbols Used in this Manual ...4 Safety Precautions...5 Dimensions...11 Indoor Unit... indoor unit...33 Checking the Drainage, Forming the Pipings and Long Pipe Setting 34 Checking the drainage...34 Forming the piping...35 Air Purging and Evacuation ...36 Checking method ...36 Evacuation...37 Charging ...38 Test Running ...39 Operation ...40 Function of control...40 Function...2-way, 3-way Valve ...78 Exploded View & Replacement Parts List 82 Indoor Unit ...82 Outdoor Unit ...86 2 Multi type Air Conditioner
Multi type Air Conditioner Service Manual TABLE OF CONTENTS Model Number Nomenclature ...3 Symbols Used in this Manual ...4 Safety Precautions...5 Dimensions...11 Indoor Unit... indoor unit...33 Checking the Drainage, Forming the Pipings and Long Pipe Setting 34 Checking the drainage...34 Forming the piping...35 Air Purging and Evacuation ...36 Checking method ...36 Evacuation...37 Charging ...38 Test Running ...39 Operation ...40 Function of control...40 Function...2-way, 3-way Valve ...78 Exploded View & Replacement Parts List 82 Indoor Unit ...82 Outdoor Unit ...86 2 Multi type Air Conditioner
Service Manual
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... the risk of connected a indoor unit is up to 24k Btu/h Symbols Used in this Manual This symbol alerts you to the air conditioner. This symbol indicates special notes. 4 Multi type Air Conditioner Model Number Nomenclature Combination table Operation 1 UNIT 2 UNIT 3 UNIT Combination(k Btu) A B C Total Unit-A Cooling Capacity (Btu/h) Input Unit-B Unit-C Total (W) Current...
... the risk of connected a indoor unit is up to 24k Btu/h Symbols Used in this Manual This symbol alerts you to the air conditioner. This symbol indicates special notes. 4 Multi type Air Conditioner Model Number Nomenclature Combination table Operation 1 UNIT 2 UNIT 3 UNIT Combination(k Btu) A B C Total Unit-A Cooling Capacity (Btu/h) Input Unit-B Unit-C Total (W) Current...
Service Manual
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... out or damaged during operation. • Moisture may cause injury, accident, or damage to the product. • If the base collapses, the air conditioner could cause injury. Be cautious when unpacking and installing the product. • Sharp edges could fall with age. • It may condense and ... Do not install, remove, or reinstall the unit by yourself (customer). • There is risk of fire or electric shock. 6 Multi type Air Conditioner Do not place anything on the power cable. • There is risk of the case edges and the fins on a Be sure the installation area...
... out or damaged during operation. • Moisture may cause injury, accident, or damage to the product. • If the base collapses, the air conditioner could cause injury. Be cautious when unpacking and installing the product. • Sharp edges could fall with age. • It may condense and ... Do not install, remove, or reinstall the unit by yourself (customer). • There is risk of fire or electric shock. 6 Multi type Air Conditioner Do not place anything on the power cable. • There is risk of the case edges and the fins on a Be sure the installation area...
Service Manual
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... product. Ventilate the product from time to ensure that Keep level even when age after installation or repair of product. age. 90° 8 Multi type Air Conditioner Take care to ensure that water could during operation. (Do not touch the elec- (flooded or submerged), contact not enter the product. water is drained...
... product. Ventilate the product from time to ensure that Keep level even when age after installation or repair of product. age. 90° 8 Multi type Air Conditioner Take care to ensure that water could during operation. (Do not touch the elec- (flooded or submerged), contact not enter the product. water is drained...
Service Manual
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... of fire, electric shock, or damage to your neighbors. Use a soft cloth to lift and transport the product. Do not touch the metal parts of air flow. They are very sharp! • It may cause corrosion on the condenser and evaporator fins, could cause product malfunction or inefficient operation. Do not... may cause product failure. • There is risk of damage or loss of art, etc. Do not use harsh detergents, solvents, etc. It is a consumer air conditioner, not a precision refrigeration system. • There is risk of personal injury.
... of fire, electric shock, or damage to your neighbors. Use a soft cloth to lift and transport the product. Do not touch the metal parts of air flow. They are very sharp! • It may cause corrosion on the condenser and evaporator fins, could cause product malfunction or inefficient operation. Do not... may cause product failure. • There is risk of damage or loss of art, etc. Do not use harsh detergents, solvents, etc. It is a consumer air conditioner, not a precision refrigeration system. • There is risk of personal injury.
Service Manual
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...filter reduces the efficiency of the same type. If the liquid from the product. Do not insert hands or other health hazards. 10 Multi type Air Conditioner Do not drink the water drained Use a firm stool or ladder from the batteries gets onto your skin or clothes, wash it well with ...new ones of the air conditioner and could cause product malfunction or damage. • There are sharp and moving parts that could cause • Be careful and avoid personal serious...
...filter reduces the efficiency of the same type. If the liquid from the product. Do not insert hands or other health hazards. 10 Multi type Air Conditioner Do not drink the water drained Use a firm stool or ladder from the batteries gets onto your skin or clothes, wash it well with ...new ones of the air conditioner and could cause product malfunction or damage. • There are sharp and moving parts that could cause • Be careful and avoid personal serious...
Service Manual
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...) inch(mm) Fins per inch No. Product Specifications Outdoor Unit - Number of innovation some specifications may be changed without notification. 14 Multi type Air Conditioner A3UH363FA0(LMU360HE) 9,000~36,000 2637~10,550 2267~9071 9,000~36,000 2637~10,550 2267~9071 1320~3680 1410~3340 5.9~16.6 6.3~...1060*320) 80(176) 45 15 7.5 7.5 41.1*44.9*17.3 (1045*1140*440) 51/111 Used / Diameter EA/inch(mm) Discharge Side / Top Air Circulation Outdoor CMM(CFM) Noise Level(H/L) at 230V Sound Press,1m dB(A) 1 SVC Valve Liquid inch(mm) Gas Dimensions W*H*D inch(mm) Net Weight Outdoor...
...) inch(mm) Fins per inch No. Product Specifications Outdoor Unit - Number of innovation some specifications may be changed without notification. 14 Multi type Air Conditioner A3UH363FA0(LMU360HE) 9,000~36,000 2637~10,550 2267~9071 9,000~36,000 2637~10,550 2267~9071 1320~3680 1410~3340 5.9~16.6 6.3~...1060*320) 80(176) 45 15 7.5 7.5 41.1*44.9*17.3 (1045*1140*440) 51/111 Used / Diameter EA/inch(mm) Discharge Side / Top Air Circulation Outdoor CMM(CFM) Noise Level(H/L) at 230V Sound Press,1m dB(A) 1 SVC Valve Liquid inch(mm) Gas Dimensions W*H*D inch(mm) Net Weight Outdoor...
Service Manual
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...sure that condensation drainage can be sure to the wall. Make sure that heat radiation from the floors more than 2.3m(7.5ft). Take the air conditioner weight into account and select a place where noise and vibration are adequate for the unit location. Do not install near the unit. 2. ...than 50cm more than 30cm (11.8 inch) more than 30cm (11.8 inch) more than 70cm (27.6 inch) 16 Multi type Air Conditioner Outdoor unit 1. Ensure that the warm air and sound from the wall, ceiling, fence or other obstacles. 6. Do not have any heat or steam near a doorway. 5. ...
...sure that condensation drainage can be sure to the wall. Make sure that heat radiation from the floors more than 2.3m(7.5ft). Take the air conditioner weight into account and select a place where noise and vibration are adequate for the unit location. Do not install near the unit. 2. ...than 50cm more than 30cm (11.8 inch) more than 30cm (11.8 inch) more than 70cm (27.6 inch) 16 Multi type Air Conditioner Outdoor unit 1. Ensure that the warm air and sound from the wall, ceiling, fence or other obstacles. 6. Do not have any heat or steam near a doorway. 5. ...
Service Manual
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...) A B C D S4 50 105 59 105 SE 65 110 85 110 D Installation plate B C Ø70mm Left rear piping A Ø70mm Right rear piping 18 Multi type Air Conditioner If mounting the unit on the wall with type "A" screws. Measure the wall and mark the centerline. Drilling the hole through the walls typically. It...
...) A B C D S4 50 105 59 105 SE 65 110 85 110 D Installation plate B C Ø70mm Left rear piping A Ø70mm Right rear piping 18 Multi type Air Conditioner If mounting the unit on the wall with type "A" screws. Measure the wall and mark the centerline. Drilling the hole through the walls typically. It...
Service Manual
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..., connect the pipe and the wire. (Installation manual reference) s Drill a hole in the wall. 8. Horizontality INSTALLATION GUIDE MAP Indoor WALL Outdoor 5-7mm (0.2~0.3") 20 Multi type Air Conditioner INSTALLATION GUIDE MAP Refer to the outdoor side. 6. Drill the piping hole at suited horizon by horizontal meter on the desired surface. Look at either...
..., connect the pipe and the wire. (Installation manual reference) s Drill a hole in the wall. 8. Horizontality INSTALLATION GUIDE MAP Indoor WALL Outdoor 5-7mm (0.2~0.3") 20 Multi type Air Conditioner INSTALLATION GUIDE MAP Refer to the outdoor side. 6. Drill the piping hole at suited horizon by horizontal meter on the desired surface. Look at either...
Service Manual
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... round Inside is defective, cut it off and do flaring work with an insulation material* so that the drain hose is recommended. 22 Multi type Air Conditioner Drain hose Drain hose Tape Connecting pipe Drain hose Connecting cable Connecting cable Drain hose Loop Gas side piping Liquid side piping Prepare the indoor...
... round Inside is defective, cut it off and do flaring work with an insulation material* so that the drain hose is recommended. 22 Multi type Air Conditioner Drain hose Drain hose Tape Connecting pipe Drain hose Connecting cable Connecting cable Drain hose Loop Gas side piping Liquid side piping Prepare the indoor...
Service Manual
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...;9.52 3/8 Torque kg.m 1.8 4.2 3. Flaring Work and Connection of the indoor unit from the hooks at the indoor unit, install the drain pipe. 24 Multi type Air Conditioner Indoor unit Installation plate 8cm Spacer Indoor unit tubing Flare nut Pipes Wrench Indoor unit tubing Open-end wrench (fixed) Flare nut Connection pipe Drain...
...;9.52 3/8 Torque kg.m 1.8 4.2 3. Flaring Work and Connection of the indoor unit from the hooks at the indoor unit, install the drain pipe. 24 Multi type Air Conditioner Indoor unit Installation plate 8cm Spacer Indoor unit tubing Flare nut Pipes Wrench Indoor unit tubing Open-end wrench (fixed) Flare nut Connection pipe Drain...
Service Manual
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Drive two screws. 26 Multi type Air Conditioner Flaring Work and Connection of cover side left. 2. First, Check the side cover assembly exactly, Fix power cord in the bottom groove of Piping s Panel Assembly(Art Cool Type only) 1. Assemble connecting lead wire with controller and first fix the upper part of panel front, then match the lower part of panel front Panel Front Connector 3.
Drive two screws. 26 Multi type Air Conditioner Flaring Work and Connection of cover side left. 2. First, Check the side cover assembly exactly, Fix power cord in the bottom groove of Piping s Panel Assembly(Art Cool Type only) 1. Assemble connecting lead wire with controller and first fix the upper part of panel front, then match the lower part of panel front Panel Front Connector 3.
Service Manual
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...; Romove the batteries from the remote controller. • Slide the cover according to be used for some long time. 28 Multi type Air Conditioner Flaring Work and Connection of Piping REMOTE CONTROL PREPARATION(OPTIONAL) HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES Remove the battery cover ...from the remote controller if the air conditioner is not going to the arrow direction. Insert the two batteries. • Be sure that the (+) and (-) directions are correct. •...
...; Romove the batteries from the remote controller. • Slide the cover according to be used for some long time. 28 Multi type Air Conditioner Flaring Work and Connection of Piping REMOTE CONTROL PREPARATION(OPTIONAL) HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES Remove the battery cover ...from the remote controller if the air conditioner is not going to the arrow direction. Insert the two batteries. • Be sure that the (+) and (-) directions are correct. •...
Service Manual
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...the wires to the terminals on the inside of the Outdoor Unit control cover. are the same as the fixture. 30 Multi type Air Conditioner AWG14 Line voltage (208~230V) GN/YL 20mm The power connecting cable connected to the outdoor unit connection. (Ensure that not to... individually according to the indoor and outdoor unit should be complied with the following specifications (ETL recognized and CSA certified). Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. The circuit diagram is not subject to change without notice. • Be ...
...the wires to the terminals on the inside of the Outdoor Unit control cover. are the same as the fixture. 30 Multi type Air Conditioner AWG14 Line voltage (208~230V) GN/YL 20mm The power connecting cable connected to the outdoor unit connection. (Ensure that not to... individually according to the indoor and outdoor unit should be complied with the following specifications (ETL recognized and CSA certified). Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. The circuit diagram is not subject to change without notice. • Be ...
Service Manual
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... malfunction. High voltage Strand wire Round terminal Strip 10mm(3/8") Loosening the terminal block screw Low voltage Fastening the wire tightly Connecting cable 32 Multi type Air Conditioner A fire hazard may cause the terminal to a 35 pound weight. (6) Wind the vinyl tape round the connecting cable for sealing) Power supply line Conduit panel...
... malfunction. High voltage Strand wire Round terminal Strip 10mm(3/8") Loosening the terminal block screw Low voltage Fastening the wire tightly Connecting cable 32 Multi type Air Conditioner A fire hazard may cause the terminal to a 35 pound weight. (6) Wind the vinyl tape round the connecting cable for sealing) Power supply line Conduit panel...
Service Manual
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... the chassis. • Press the Grille toward the chassis until it will be back into place. are the same as shown below. Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. Model 36k Power source Fuse or breaker Capacity 1Ø, 230/208V 40A Connect the cable to...
... the chassis. • Press the Grille toward the chassis until it will be back into place. are the same as shown below. Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. Model 36k Power source Fuse or breaker Capacity 1Ø, 230/208V 40A Connect the cable to...
Service Manual
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... the drain hose of drain hose dipped in water Water leakage Ditch Less than 50mm gap 34 Multi type Air Conditioner Do not make drain piping. Downward slope Do not raise Accumulated drain water Air Water leakage Water leakage Waving Tip of the indoor unit without any leakage and goes out the drain...
... the drain hose of drain hose dipped in water Water leakage Ditch Less than 50mm gap 34 Multi type Air Conditioner Do not make drain piping. Downward slope Do not raise Accumulated drain water Air Water leakage Water leakage Waving Tip of the indoor unit without any leakage and goes out the drain...
Service Manual
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... moisture remaining in the refrigerant circuit may lead to corrosion of parts in vertical standing position) 36 Multi type Air Conditioner CAUTION: Be sure to use a manifold valve for leaks with charge hoses. NOTICE : Leakage test shoud be free of leaks, relieve the nitrogen pressure by ...
... moisture remaining in the refrigerant circuit may lead to corrosion of parts in vertical standing position) 36 Multi type Air Conditioner CAUTION: Be sure to use a manifold valve for leaks with charge hoses. NOTICE : Leakage test shoud be free of leaks, relieve the nitrogen pressure by ...